[root@localhost ~]# fdisk -l
Disk /dev/sda: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 522 4088542+ 83 Linux
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sdc: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdc1 * 1 131 1052226 82 Linux swap / Solaris
Disk /dev/sdd: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
[root@localhost ~]# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-391, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-391, default 391): 150
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 150 1204843+ 83 Linux
Command (m for help): n
Command action
e extended
p primary partition (1-4)
e --建立拓展分区
Partition number (1-4): 4
First cylinder (151-391, default 151):
Using default value 151
Last cylinder or +size or +sizeM or +sizeK (151-391, default 391):
Using default value 391
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 150 1204843+ 83 Linux
/dev/sdb4 151 391 1935832+ 5 Extended
Command (m for help): n
Command action
l logical (5 or over)
p primary partition (1-4)
l --在拓展分区中建立逻辑分区，因为拓展分区是不能够直接被使用的，只有做成拓展分区时，才能够被使用。
First cylinder (151-391, default 151):
Using default value 151
Last cylinder or +size or +sizeM or +sizeK (151-391, default 391): 250
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 150 1204843+ 83 Linux
/dev/sdb4 151 391 1935832+ 5 Extended
/dev/sdb5 151 250 803218+ 83 Linux
Command (m for help): n
Command action
l logical (5 or over)
p primary partition (1-4)
l --在拓展分区中建立逻辑分区
First cylinder (251-391, default 251):
Using default value 251
Last cylinder or +size or +sizeM or +sizeK (251-391, default 391):
Using default value 391
Command (m for help): p
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 150 1204843+ 83 Linux
/dev/sdb4 151 391 1935832+ 5 Extended
/dev/sdb5 151 250 803218+ 83 Linux
/dev/sdb6 251 391 1132551 83 Linux
Command (m for help): w ---保存
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# fdisk -l
Disk /dev/sda: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 522 4088542+ 83 Linux
Disk /dev/sdb: 3221 MB, 3221225472 bytes
255 heads, 63 sectors/track, 391 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 150 1204843+ 83 Linux
/dev/sdb4 151 391 1935832+ 5 Extended
/dev/sdb5 151 250 803218+ 83 Linux
/dev/sdb6 251 391 1132551 83 Linux
[root@localhost ~]#
